Questions tagged [pixels]

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2answers
119 views

How to drive up to millions of ws2812 or APA104 LEDs? [on hold]

I've driven more than 2k of APA102 from a computer using a USB to SPI interface for an interactive project. Since then I've been curious how I could made the same setup for even a large pixel area, up ...
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0answers
26 views

SK6812, what happens if a pixel fails?

I plan to use SK6812 RGBW LEDs for my projects. There was a question of reliability. What happens if one of the pixels fails? Will the signal go further? If not, which way to look?
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2answers
80 views

Camera pixel size limit reached?

Just read here that Samsung has produced a camera sensor with a pixel size of 0.8 micron ie 800nm. Is it possible, or useful, for the pixel size to go below the wavelength of the light being imaged? ...
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0answers
61 views

EMWIN Keil LCD display shows half the screen completely!

I have written one project in Keil for STM32F103RE && ILI9325 2.8" TFT LCD, So my problem is this, the GUI_SetBkColor(GUI_BLUE); Function only fill only ...
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1answer
94 views

Where can I get a display screen with 30 Hz or less refresh rate? [closed]

I am experimenting with a camera recording a display screen. Based on what I have read - camera recording a screen will have flicker if the refresh rate and frame rates are not synced. My mobile ...
5
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1answer
137 views

How do LCD screens repair themselves?

Hey, electronics people: A few months ago, I cleaned a spot on an LCD flat screen. Whatever it was, it was stuck on there pretty good and I guess I pushed down on it too hard (actually wasn't hard at ...
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1answer
53 views

Why there is difference between image size and video resolution of a specific camera? [closed]

I was searching to buy a camera, but I saw in specs they wrote: 2MP(full hd) video recording 5MP image size Why the vido size is 2MP but image size is 5MP? How ...
3
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3answers
886 views

Which color puts the least “strain” on an LCD pixel to avoid burn-in/ghosting?

I am developing a user interface on a cheap Kinco color LCD HMI unit. After leaving a test UI on the screen for about 3 days, there was a very decided "ghosting" effect. I was able to eliminate the ...