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

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1answer
47 views

idea to run xmas lights [on hold]

I had an idea for next years display but my electronics know how is not good enough for me to build the unit I have in mind, let me see if I can explain. I have the main set up, they are on a timer. ...
2
votes
2answers
106 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
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0answers
51 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
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1answer
51 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
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2answers
117 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
39 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
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1answer
45 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 ...
0
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0answers
13 views

How to properly solder apple's thunderbolt to vga [migrated]

I just bought a cheap Thunderbolt to VGA conversor, for a macbook pro. It didn't work at all so I decided to open the case. I found a silicon lump and most of the cables just hanging there. Just as ...
2
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2answers
56 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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0answers
46 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 ...
0
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1answer
53 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 ...
0
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1answer
61 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 ...
0
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1answer
72 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 ...
0
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1answer
36 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 ...
0
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2answers
56 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 ...
0
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0answers
80 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 ...
0
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0answers
42 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 ...
3
votes
1answer
144 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 ...
3
votes
4answers
178 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, ...
0
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2answers
86 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 ...
2
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2answers
135 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
95 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
votes
4answers
392 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 ...
0
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2answers
366 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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1answer
70 views

What is custom AMOLED display technology? [closed]

I want to know about custom AMOLED display technology?
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3answers
105 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
206 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 ...
1
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2answers
137 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?
1
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1answer
103 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 ...
1
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1answer
108 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 ...
0
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1answer
63 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.
2
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2answers
86 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 ...
2
votes
3answers
622 views

How can I use/convert the touchpad, keyboard and screen of an old laptop to use them with a desktop PC? [closed]

Is there a common way for all the laptops' hardware, like screen, touchpad, and keyboard, that can be followed in order to use them with a desktop PC? What I need to do, to use screen, touchpad, and ...
0
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0answers
190 views

Finding/figuring out pin configuration on undocumented components

I recently purchased an assorted set of LCD/LED displays, and inside there were a set of components which I cannot find a datasheet for upon googling the component number. For instance in the ...
0
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1answer
687 views

My OLED 128x64 0.96 inch(with SSD1306 driver) doesn't work!

I'm working to use of this OLED but I don't know why doesn't it work!? the Schematic of adaptor is this: and this is assembeled project on breadboard: when I check out the pins of SPI of ...
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1answer
92 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?
0
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0answers
203 views

7 Segment 8 digit jumpo display using pic 16f877a controller

I am designing master and slave jumbo (4") 7 segment 8 digit display using PIC16F877A controller the display is common anode with 12 v supply. When I am driving only 4 digit its working fine. When I ...
2
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1answer
103 views

How do I connect this piece of electronics to show the digit display? (from satellite decoder)

I have the following piece of board/electronics: Link: http://i.imgur.com/jwomLz8.jpg Link: http://i.imgur.com/4BCKU21.jpg Now, I recently bought an arduino, so I want to connect the digit ...
13
votes
1answer
581 views

What is this type of flexible contact strip called?

The LCD below is from a cheap digital clock which was (obviously) damaged (broken glass). The electrical connection between the PCB and the display was realized with this pink strip. Its ...
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0answers
71 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 ...
0
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0answers
64 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 ...
1
vote
1answer
105 views

Help me understand the pinout of this 21" LED display driver

I am trying to connect a 21" LED Display driver's input pins to my power board. There is a datasheet also but it doesn't have the input pin diagram. Therefore, I have got the below attached input pin ...
2
votes
1answer
202 views

Utility of two pins requiring same voltage

I have a LED backlight driver, which has input pin assignment as: Pin Function 1,2 12V Input 3 Brightness control PWM : 100Hz~20KHz DC : 0.5V~2.5V 4,6 ...
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0answers
142 views

What is the rs-485 protocol for controlling old flipdot displays?

I have an old Luminator flipdot 16x112 pixel bus destination sign I'd like to hack. There are numerous resources on the internet for controlling the flipdot display panels with new circuitry, ...
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0answers
60 views

Identify connector with > 1.5mm pitch for display panel

simulate this circuit – Schematic created using CircuitLab The current display panel that I picked has 0.5mm pitch for the FPC cables that comes out of the panel as shown in the first ...
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0answers
57 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 ...
3
votes
2answers
431 views

Why DisplayPort cables must isolate the power pin?

I've been investigating why my 2560×1440 DisplayPort monitor and my mini-DisplayPort MacBook Air don't play along, and, it turns out, this is likely due to a wire in the cable that connects the two ...
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0answers
151 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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2answers
81 views

Technical hurdles for high-frequency video output implementation

I'm wondering if HDMI or DVI formats support the display of input signals at high frequency > 240Hz. Most current TVs only display high frequency video from signal interpolation, but only capture ...
3
votes
1answer
88 views

What is the real amount of reproducible colors on CRT display?

Let's say, a generic consumer-level CRT. How much colors can it reproduce?