Questions about LCDs, 7-segment LEDs, E-ink displays, etc.

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2
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1answer
38 views

VHDL 4-display counter on a Nexys 3 (0000 to 9999)

I'm triyng to implement a 4 display counter (0 to 9999) on a Nexys 3. However, when I load the bit file, all displays remain at 0. It seems like variables a,b,c,d; which control individual digits, ...
0
votes
1answer
51 views

Using a LS248 7-segment driver, but segments are dim. Can't figure out why

I'm building a project where I want to use two double-digit 7-segment-LED displays (green, common cathode). From what I've read, a shift register wouldn't be able to source enough current, so I ...
0
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0answers
30 views

Which TFT display to use for faster processing speed?

I'm planning to integrate a user interface into my arduino project and came upon TFT displays. While interfacing with the TFT displays, will it affect the performance of the arduino processing? Also ...
0
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2answers
58 views

How To Build A POV Display Clock? [closed]

Hi I'm looking to make a pov display clock. The problem I am having is finding plans because I want it to rotate on a horizontal axis. I'm wanting to attach it to a magnetic rotor such as ...
0
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0answers
19 views

I2C Display Module (NHD-C160100-DiZ) for DIY Scientific Calculator Help

Good evening everybody reading, This is a project I've been developing for about 6 months. I am stuck because I can't get the display module (datasheet here) to work. I attached my schematic for the ...
0
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1answer
53 views

A possible decimal digit dvm?

I would like to build a 3x10 decimal digit dvm for an edge lit numerical display. The nearest schematic that I can find is using a CA3162E / LM74LS147 which can be found at: ...
1
vote
1answer
50 views

LED Display: Understanding Led pitch, resolution, viewing angle and distance

i'm working on project in which we need to design a Led Display. I google some information and get a little confused about some key topics. Some of them are: Led Pitch Viewing Angle Resolution ...
1
vote
1answer
30 views

RGB matrix displays?

I'm working on firmware for LED display composed of Chinese RGB LED matrix modules (1/4 scan, 16x16, RGB). I want to find out how some pictures are displayed in three colors, is there any idea behind ...
2
votes
3answers
90 views

What is this display technology called?

I saw this display on Adafruit. They describe it as a mix of an e-ink (the low power consumption) and an LCD (the fast response time). And further as "a matt silver background, and pixels show up ...
1
vote
1answer
106 views

Why is my SSD1306 OLED only displaying half of the screen area?

I am trying to get this display working with my arduino via i2c: http://www.buydisplay.com/default/0-49-inch-oled-display-module-64x32-pixel-ssd1306-i2c-white-on-black I have successfully initialized ...
1
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2answers
126 views

16 segment LED sparkfun resistor help

I am quite new to this and am struggling to read through the data sheets of the Sparkfun 16 segment display, datasheet here. I have managed to get all of the LEDs wired up through a LED driver, with ...
0
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0answers
32 views

Will a ThunderBolt Connection, Power an iPad Retina Display?

I like this kit from Adafruit but I was wondering if I could do away with the external power and use the power coming from the ThunderBolt connector to power the display and all other electronics on ...
1
vote
1answer
122 views

What are these displays called?

I now searched the web for about an hour and just can't figure out how these displays are called or where to buy them. A lot of airports use them for the departure table. They seem to be just ...
3
votes
1answer
51 views

How are DACs integrated in color LCD screens?

I'm having trouble imagining what actually happens inside an LCD screen. I picture digital RGB data for each pixel getting sent to the screen through a connector. Lets say we have 24-bit color for ...
3
votes
2answers
95 views

Self Contained Temperature Display in Very High Temp Environment

I want to build a temperature sensor + display that will operate in a high temperature environment (routinely 120C, but periodically spiking to 175C, and might be exposed to 350C where it would be ...
-4
votes
2answers
83 views

3D display, that's actually3D [closed]

So one night, (last night) i was in bed trying to get to sleep, and then something came to mind, this one thing came to my mind and got me excited. You may now be wondering what came to my mind, or ...
1
vote
1answer
110 views

How exactly does a VGA cable work?

I've been looking around on the internet and I can't find anything in depth on how the cable/connection functions. I've only been able to find simple pin out descriptions. If someone can link me or ...
0
votes
2answers
104 views

Driving 50-pin e-ink display with one chip?

I'm trying to connect this 50-pin e-ink display to an Atmel ATmega328p for a hobby project. The biggest design challenge I'm facing is connecting all the pins from the display to the MCU in an ...
0
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2answers
45 views

Power Supply amp doesn't match with adapter. Can I use the adapter? [duplicate]

Can I use this LCD display: http://www.itontec.com/product-detail/product-name-7/ With this adapter: *Display Specs: Power Supply(5~12V 2A) *Adapter Specs: Output: 12V - 1A Is that safe to use ...
1
vote
1answer
240 views

SSD1306 Display ISP Connection or I2C (According to resistors)

I bought one of those cheap 0.96" OLED Displays from china, ebay. In the product description it states that it's a I2C Display, Ebay Link. I want to use it with an ATmega8. I connected it accordingly ...
0
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0answers
37 views

how to connect micro display with DPI interface

I am beginner to do this . What I want to do is to connect dart4460 board to micro oled display. dart4460(omap4460) has display interface. oled display supports 24 bit RGB signal. here are specs ...
1
vote
1answer
58 views

Running a 7v shift register from arduino 3.3v

Im trying to learn some electronics, so im not that confident with some of these systems, I recently bought a load of the alphanumeric displays from Sparkfun but foolishly read the data sheet for ...
0
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0answers
47 views

Odd red noise appears on the display of my Samsung SyncMaster 943N monitor [closed]

I have a problem with my Samsung SyncMaster 943N monitor. For some reason red noise appears on the displayed screen. Notice the red noise around the white zones in the image: Tried connecting it ...
0
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0answers
106 views

Can I connect my Innolux screen to Raspberry Pi 2 using TFP401 HDMI/DVI Decoder to 40-Pin TTL Breakout

Setup Raspberry Pi 2 TFP401 HDMI/DVI Decoder to 40-Pin TTL Breakout - Without Touch Innolux 5.6 LCM aSi TFT type LCD I am hoping to be able to connect the Pi2 to the Driver using a small HDMI ...
0
votes
1answer
79 views

blinking a display using trigger

I've been banging my head over this for a while now, basically I have this display driver that in normal conditions would update a seven segment display continuously. What I would like to do, and I'm ...
0
votes
1answer
48 views

Can a LCD display work with swollen capacitors for a large period of time until briefly turned off? [closed]

I am trying to figure out why would my very old SyncMaster 720N stop working after turning it off for a very brief moment. I've already had issues with it, I had to replace some capacitors and then it ...
1
vote
0answers
98 views

Discrete logic multiplexer

I posted a more in-depth outline of what I'm doing here, but basically I'm building this circuit (for n=3): The circuit displays an output based on the combination of three three-input DIP ...
5
votes
2answers
146 views

Is my LCD TV doing some sort of dithering? [closed]

I'm using a 32" 'LED' TV as a monitor (1920x1080 over HDMI). I've been noticing some annoying horizontal stripes where the source is displaying grey pixels. It seems that what's happening is the TV ...
1
vote
0answers
105 views

7 Segment display driver issues

I have this code for driving a seven segment display for hex. From my understanding its logically correct, but when I try and run it on my Nexsys 3 board I never get the correct output, it seems that ...
0
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0answers
28 views

What are the native gammas of modern displays?

CRTs had a native gamma of about 2.5. Do modern modern LCDs or OLEDs have a linear gamma response curve? If not, does display technology with a linear gamma response exist?
0
votes
1answer
89 views

Purchased a cheap LED monitor with no power leads, how do I find the power leads? [closed]

I just purchased a cheap TFT LED monitor and it has no power leads, how do I find where to soldier the power leads onto this unmarked circuit board?
1
vote
1answer
57 views

are there differences in energy consumption for displaying color?

The question stems from wanting to design UI's for mobile devices that consume the least power. I'm assuming a dimmer screen will consume less power..but would, for example, green use less power than ...
-1
votes
1answer
82 views

What kind of a display should I be using? [closed]

Are old monochromatic displays, like the ones used on the original Gameboy (bad example, I know), much more power efficient than modern colour LCD/LED/OLED displays? If so, why are they so hard to ...
-2
votes
1answer
106 views

what is the value of resistor used for 4 digit 7 segment 12 pin display?

refer circuit http://www.instructables.com/id/Arduino-4-digit-7-segment-display/ .Here no any resistor is use is there any need to connect resistor for a b c d e f g .And is there any alternative for ...
0
votes
2answers
192 views

Building a display system with depth - HUD (Iron-Man)

I hope most of us have watched iron-man and got excited on certain parts of the movie. Everyone got their personal favorite. My favorite is the HUD(Heads Up Display). This inspired me to start a ...
0
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1answer
74 views

DisplayLink LCD Controller [closed]

I want a small portable monitor (7 in) that can connect to my USB drive for power and picture (DisplayLink). I've found some cheap lcd screens, such as ...
0
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2answers
164 views

multisized 7-segment displays in a circuit

I want to use 1-inch & 2-inch 7-segment display in a digital clock based circuit(six 2-inch display in a row & six 1-inch display in another row). I am using 74hc164(serial in parallel out ...
0
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1answer
118 views

LCD Display connection

How to connect this http://docdroid.net/ngqg LCD Display to microcontroller? It is ILI9341 based. Is it possible to connect only SPI/LED pins and leave every other input pin floating or I need to ...
-1
votes
1answer
118 views

Looking for 16 Segment LED/VFD Display with Comma, Decimal Point, and circle

I am building a KITT replica from the TV show Knight Rider. On his dash are 10 characters of 16 segment LED's that have a decimal point and comma. In addition to that, there is a circle beneath each ...
0
votes
1answer
61 views

What type of display digital watches use? [closed]

I need a "thin" seven segment display to buy. It should be in size of a digital watch. It can be both seven segment display or character display. How should I search? When I seek for 7 segment display ...
0
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0answers
75 views

How to increase number of LED blocks in a moving LED display

I have been working on a project where I have to make an 80x20 sized moving LED display. I'm using a decade counter to shift the characters being displayed. I want to know, in the programming ...
2
votes
2answers
133 views

Lots of thermistors but no readout

Back in Sep '12, Olin Lathrop answered a similar question about wiring a digital display to a thermistor, but my situation is slightly different from Jim McDerby's. I too have solar thermal panels ...
2
votes
0answers
53 views

Where do current developments go regarding graphical displays for devices? [closed]

Our company is currently redesigning a piece of measurement equipment. We have looked at what display we have currently (It's a generic 240 by 64 pixel graphic LCD like this one ) and if there is any ...
1
vote
1answer
59 views

Small system on a chip : Power consumption [closed]

This question is lying somewhere between electrical engineering and computer science, however I felt that this forum suited my question the best. I post this question because I feel that this kind of ...
1
vote
2answers
131 views

Is there a display technology that unites red, green and blue subpixels into a single pixel?

After checking out this question about a visual side effect caused by separation of each pixel into subpixels (red, green and blue), I thought that there might be a way to unite the subpixels into ...
0
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2answers
569 views

Using Smart Phone displays in Raspberry Pi or other computers

Many smart phones aren't used after 2-3 years but the displays are good and i was wondering why no one is using those display within electrical components? Wouldn't it be great to have a module which ...
1
vote
1answer
537 views

HDMI to MIPI conversion [closed]

I want to use a 1080p touch panel with an ODROID-XU3 Lite but unfortunately it seems that the ODROID only supports HDMI output and that 1080p panels are only really available with a MIPI interface. I ...
2
votes
2answers
67 views

How to make an octant display?

I am trying to construct a display that is shaped like an eighth piece of a sphere. The resulting device shall be self-sufficient and possibly portable, meaning projection onto matte octant won't do ...
0
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0answers
145 views

High-voltage seven segment LED display driver problem

I've a circuit similar to THIS project, with a 74LS04 as inverters instead of 74HC54 (tested 74HC04 and CD40106 too) and ULN2003 instead of ULN2803. The circuit seems to work perfectly but when I turn ...
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votes
1answer
82 views

Redoing the factory calibration of LCD panels?

Is it possible to rewrite factory calibration of LCD panels? I am not talking about buying a Spyder 4 or X-Rite calibration device and generating a software lookup table at the OS, or graphics card ...