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

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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 ...
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0answers
17 views

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

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 ...
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0answers
18 views

Software program for display analysis and benchmarking [closed]

I aim to evaluate and do some sort of benchmarking on a display by writing a software program based on its framework and graphics library (in C++) to understand if the display meets the SW ...
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0answers
13 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 ...
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1answer
67 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 ...
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1answer
44 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 ...
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0answers
68 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 ...
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2answers
116 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 ...
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0answers
79 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 ...
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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?
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83 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?
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1answer
55 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 ...
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1answer
61 views

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

I'm looking for a display >= 160x144 that will use as little power as possible. This (hobby project) device of mine will be portable and I am hoping to have it last for months on regular AAA ...
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1answer
73 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 ...
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2answers
97 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 ...
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1answer
60 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 ...
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2answers
96 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 ...
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1answer
80 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 ...
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1answer
95 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 ...
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1answer
58 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 ...
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0answers
67 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 ...
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2answers
119 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 ...
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0answers
52 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 ...
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1answer
55 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 ...
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2answers
129 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 ...
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2answers
346 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 ...
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1answer
205 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 ...
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2answers
66 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 ...
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102 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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1answer
77 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 ...
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1answer
64 views

Displays, camera, speakers, microphones: why after more than 50 years of development do they still need calibration? [closed]

An old question running through my mind: Displays, camera, speakers, microphones: why after more than 50 years of development do they still need calibration? Whatever cheap or high-end material I ...
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1answer
157 views

Change display orientation on ILI9325

I've started to play with a cheap TFT display, called HY28B. It's pretty well known, I guess... Anyway, I want to change the orientation of the display to landscape mode, but somehow it doesn't do ...
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1answer
45 views

Are NTSC and PAL affecting display rate

I understand that the NTSC TV signal is 30hz and PAL is 25hz, but if NTSC and PAL are TV signal standards how could they affect display rate(Hz) for input devices e.g. when you connected and old game ...
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2answers
98 views

How to drive a plain LCD panel (get it to work with DVI)

I have an old iMac G5 laying around I want to transform it into a second monitor, but without any extra software on the device, but by just controlling the screen panel. I dissasembeld the iMac and ...
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138 views

ST7565 LCD wiring with Arduino

I have this SPI 128x64 COG LCD display which uses ST7565 for its controller. After some searching, I found that a tutorial at ladyada.net. So with the "schema" from Digole and the information from ...
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61 views

Displayport-to-analog video OR HDMI-to-analog video conversion

In an embedded system, we have two video sources which output identical image data: one of them is DisplayPort, the other one is an HDMI output. In this embedded system, we need an analog video ...
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3answers
329 views

Weird problems with LCD (HD44780 compatible)

I've been trying to interface with a HD44780 compatible display (16x2) for quite a few hours now, but have run into some weird behavior problems which I can't solve. My setup: I'm using the LCD in ...
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4answers
439 views

Why do most PWM LED displays and backlights operate at a relatively low frequency?

All around me are a bunch of electronics: digital clocks, my laptop, a refrigerator, a dimmable flashlight, and more. What they all have is perceptible flickering of their displays due to PWM, ...
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2answers
135 views

Replacing a sound module's LCD/EL backlit display with a LCD/LED backlit display

I am attempting to upgrade my Kurzweil K1200 rack sound module's display with a LCD/LED display (it currently has an LCD/EL display). The reasons are numerous; but longer life, brighter display, and ...
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2answers
179 views

How large is “one pixel” for S5 AMOLED display?

Referring to Samsung Galaxy S5 OLED Pixel structure in oled-display.net, in particular this image illustrates the S5 AMOLED pixels: To my understanding, the yellow rectangle should represent "one ...
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2answers
117 views

Creating a “virtual” LED display

I have a small project and I would like to have an LED display, just for the sheer fun and look of it. However it would be too expensive for me to make (I would like to use RGB leds) and I would need ...
3
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4answers
431 views

What are some of the segmented displays with the lowest power consumption?

I have to select a low-power display for a solar-powered digital clock. I have looked into numerous technologies, including e-ink. However, I was still unable to compare between them due to the lack ...
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2answers
1k views

LVDS vs MIPI, what's the difference?

What are the practical differences between LVDS and MIPI? A little background information: I am attempting to build my own projector on the cheap and want to use a nexus 10 LCD panel (2560 X 1600 ...
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3answers
122 views

Why does a screen resoltion is same for both a mobile phone and a 60inch TV Screen? [closed]

Resolution of say 1080 x 720 means 1080 vertical lines of pixels and 720 horizontal line of pixels. This means a total of 777,600 numbers of pixels across the width and breadth of the screen. Now for ...
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3answers
302 views

Technique to drive seven segment displays with external components

I'd like to ask for some advice on the circuit described below: I'm building a matrix of multiplexed seven segment displays, with common anode. The ports D1-D3 and segments A-DP will be driven by ...
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2answers
181 views

7-segment display driver IC [closed]

Which IC can I use to control 7-segment display? I want to make simple projects like a reaction timer but I don't have an Arduino or some other microcontroller available. What ICs can I use instead?
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1answer
131 views

HDMI to RGB conversion

I am working on a HDMI dongle based on I.MX6Q with reference to the design files shared in Freescale community. I want to feed HDMI input to processor. As there is no HDMI input available with ...
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1answer
131 views

Display for outside (sun)

I am currently working on a little project where I would like to have a display which would have to support this format: 00 00:00:00 This would have to be used outside on a motorcycle ...
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1answer
67 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.
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2answers
96 views

low power displays

What kind of displays can I use effectively with a coin cell battery (CR2450)? The backlight or the entire display would be on only when necessary. From previous answers I know that a liquid crystal ...