Questions tagged [display]

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

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77 views

Connecting display to arduino [closed]

So i've been googling displays for the Arduino, and they are all usually small or the wrong shape, but they all seam to have GPIO connectors in the back (shields) that connect directly to the Arduino. ...
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39 views

Displays used in clocks - use with Arduino/ESP32/PIC [closed]

I'm working on a project with a micrcontroller and I need a low-power display similar to something shown above. Does anyone know what these particular displays are called and whether or not there ...
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30 views

How would you connect a LVDS display to a laptop motherboard supporting natively a different display?

I'm planning a project of building a 4:3 laptop based on existing (modern) components. As 4:3 displays are not manufactured anymore the idea is to take one from a old laptop, like a thinkpad T60. Then ...
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28 views

2 Digit Integer Display in Proteus

I have a homework which I am working on right now. Design a counter that counts 0 4 6 8 12 14 0... (mod6) and when to counter shows 14 it is going to stop and wait for 3 minutes. After 3 minutes ...
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36 views

Why would only a DisplayPort cable work with my Surface Docking Station?

I hope this is the right section to post this in; I don't see a hardware question section (just a recommendation), and this seems to be beyond software engineering... After a week of troubleshooting, ...
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31 views

How to connect generic smartphone LCD screen to take HDMI input from e.g. laptop?

For a certain project that has a specific screen size requirement, I want to use a phone-sized screen (6") to take HDMI from a laptop. Here is an example product: https://www.amazon.ca/Digitizer-...
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1answer
39 views

Can you get “raw” TFT display panels where you drive the gate and drain lines directly?

I am learning about different display types and how I might interface them with raw electronic components, e.g., TTL chips, op amps, function generators for scan line sawtooth, etc. CRT raster is ...
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23 views

How do I connect display to board

I’m experimenting when some OLED displays similar to this and here’s the data sheet. My question is how do I connect the display to the PCB? I’m unfamiliar with the flat ribbon type cable and how to ...
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2answers
74 views

Efficiently driving 6 LEDs in parallel

I have a display that has six white LEDs in parallel (common anode) as backlight. The LEDs' forward voltage is 3.2V, the current per LED is 20mA, so 120mA in total. The available voltages in the ...
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3answers
191 views

Reading info from an LCD display

OK, so I've quite recently stepped in to the world of Arduino, and I seem to get the "overall" view of it. But I have a long way to go before I'm putting "Expert" on my card... :smiley-confuse: So ...
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29 views

Setting HSYNC and VSYNC registers

I am using the FT801 (datasheet) to drive a Newhaven 4.3" TFT display (datasheet). The TFT datasheet specifies the normal timing parameters (hsync/vsync peroid, front porch, back porch) on page 6. ...
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17 views

Disabling menus on MSO2024B

The Tektronix MSO2024B oscilloscope has annoying menus that continually pop up when you adjust the scale , time base, or any other setting on the scope that you need to remove (by clicking waveform ...
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40 views

Use a decoder or direct address?

I am designing a RGB LED matrix of 1:4 scan 16x32 pixels As it is 1:4 I have 2 options Option A: Use A,B,C,D pins direct address to control the display or Option B: Use A,B pins only and use a ...
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34 views

What display interfaces do automotive screens use?

For example the screens inside tesla cars, I first think of HDMI, many high end embedded processor boards come with HDMI outputs, but is this connector found in actual mass production or industrial ...
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1answer
31 views

SSD1306 128x32 OLED Initialization problem

I'm trying to run the SSD1306 128x32 on a NUCLEO board. But I can't get the thing to properly initialize. This is my initialization sequence. ''' ...
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1answer
28 views

Controller for HDMI to 30-pin display connector converter

I need to design a circuit for HDMI to a 30-pin eDP adapter. Do I need to use some high-speed microcontroller that takes the signal from HDMI or forwards it to the eDP connector or is there some chip ...
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100 views

Analyze protocol used for Futaba VFD display, 3 data pins

I take apart a Samsung SMT-C7140 HD Unit (made obsolete by cable company, a shame) and found a nice display that I could probably reuse. It is a Futaba GL07-00006A (13-BT-246GINK). I tried to find the ...
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1answer
66 views

what kind of display technology is this?

There is some kind of backlit display in the product markets which is most likely displaying behind the plastic. I don't know if this is related to LCD or electronic technology or maybe some kind of ...
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15 views

What is a training pattern ? How does it lock the CR Clock

This is regarding the Display port ( Section 3.5.1.3) How sending the D10.2 characters lock the Clock recovery circuit in the Display port during the link training sequence ?
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13 views

What is AUX CH handshake in Display port

In the section 2.5.3.3 Link Initialization through Link Training "There is another exception for a box-to-box connection. When DisplayPort Source Device is resuming the transmission, the Source ...
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1answer
21 views

Do we need to send HSync, Vsync, HFP, VFP, HACTIVE in the Display port

On going through the display port specification, in the main stream packet structure I see only the pixels getting packed between blanking start and blanking end. Don't we need to send HFP, HBP, Hsync,...
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37 views

What is inter-lane skew insertion in display port

I am reading the display port specification facing some issue in understanding some terminology 1. What is inter lane clock skew 2. In the fig 2.8 what is bus steering ?
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29 views

What is the difference between 960RGB and 1920RGB?

In MIPI DSI display resolution, what is the difference between "960RGB * 1920" and "1920RGB * 960"?
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35 views

Interfacing a MIPI DSI dislay

I'm designing an interface board to connect a MIPI DSI LCD screen to an RPi. The screen is a KWH070KQ40-C08 (link to pdf), but the datasheet isn't quite clear and I ...
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1answer
71 views

Can I use the 1.8 inch TFT LCD SD slot for other purposes other than displaying images on the display?

Can I use the 1.8 inch TFT LCD SD slot for other purposes other than displaying images on the display? For example, storing text files on that SD card (that's on the display's SD slot)? Can I use that ...
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1answer
54 views

How to display 20 2-digits numbers?

I'm working on something where i need to display 20 independent 2-digit numbers that are located in different places. In current prototype there are 20 extruded in plastic numbers with led backlight. ...
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1answer
46 views

What system would I need if I want to store large amounts of text data and be able to control a TFT LCD display? [closed]

My goal is to build an electronics project where I can store large amounts of text data (books) where I want to display that text on a TFT-LCD display. Right now, I have my display hooked up to an ...
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33 views

How to display Keyboard's binary to Digital waveform

How can I display to a monitor a digital waveform of any key when pressed in a keyboard? I was thinking to use an arduino or a raspberry. For example, when I press the small letter 'a' on a keyboard (...
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1answer
75 views

What is wrong with this LCD backlight boost converter circuit

I have been working with a dev board with the LCD backlight circuit shown below. The boost converted used is the TPS61041. On page 18 of the datasheet, there is an example of the backlight circuit ...
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2answers
70 views

How to wire 0.91/0.86 inch display to i2c?

I have a 0.91 inch display with a 4 pin I2C connection. I then realised that I needed to use a 0.86 inch display with the connector in the above image. I have searched on google on this but nothing ...
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83 views

Is this neon light display real or fake? how does it work? [closed]

Is this neon light display real or fake? if real, then how does it work? https://www.youtube.com/watch?v=xlcywgEMuGI
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39 views

Soldering Header Pins Together to Multiplex Single Digit 7-Segment Displays

To multiplex two or more single digit SSD’s, each corresponding pin must be connected to that of the other displays, such as in this schematic. I’ve accomplished this with 4 displays by using a ...
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0answers
72 views

LVDS (from PTN3460) driven display shows fringed lines

I am developing a board which converts DisplayPort to LVDS. The LVDS is put through a PCIe switch and then fed to an APIX transmitter, which connects to the display. There's a second video path going ...
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66 views

HDMI Development: What Would Cause Thin Pink Lines?

I recently designed a board which produces an HDMI output for an oscilloscope so it is viewable on an external monitor. My prototypes seemed to work just fine with one or two mod wires. However, after ...
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2answers
349 views

Ghosting in VGA signal generation

So, I'm generating a 1280x1024 (native screen resolution) VGA signal using a Lattice HX8K > Yosys, according to these timings, and a PLL of 107.812Mhz of Pixel Frequency. I then pass it through a ...
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1answer
52 views

How do modern displays output data to pixels? [closed]

Do new displays still write pixels one at a time? I thought this was the case until I saw a video showing slo-mo footage of a display, in which it was clear that all of the pixels are on at the same ...
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59 views

Purpose of metal sheath in display cable?

I want to repair a display cable which I suspect has some broken wires. The cable seems to be wrapped in a metallized fibre cloth. (I don't know the correct name for it). What purpose, apart from ...
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1answer
107 views

LVDS data rate to TFT

I have a two LVDS Ports (A & B) coming from deserializers connected to a 10.25" TFT display. lvdsaclkp, lvdsaclkn, lvdsa[0:3]p/n lvdsbclkp, lvdsbclkn, lvdsb[0:3]p/n VESA: JEITA: What is the ...
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0answers
175 views

Calculating LCD display horizontal and vertical porch values

How should I set the porch and sync values given an LCD display? For example, say my FHD (1920x1080) display datasheet says its has a total vertical cycle of 1125. I have 45 clocks remaining (...
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25 views

How to find out which Linear Polarizer Film Angle is right for repair?

I recently bought a broken monitor on eBay. The seller partially tore off the polarizing film thinking it was a protector of sorts. Now I want to replace that film. How can I find out which angle (90°,...
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176 views

Make LCD reflective

If I don't care about dim light or darkness, can I make an LCD-display sunlight readable by removing it's backlight and replace it by a mirroring surface, followed by a diffusor?
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41 views

Recommendation ITU-R BT.1729 test image for 5:4 display

For radiated emissions testing according to EN 55032 CISPR 32 with displays of category 4, there is a Recommendation ITU-R BT.1729 which specifies a reference test pattern. The pattern is designed for ...
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47 views

OLED SS1306 displays on one side only when using AVR

I have an I2C 128x64 OLED display here. I've tried using Arduino and everything works flawlessly. Now I'm trying this but just writing in straight-up C code. Majority of the display is garbled up. I'...
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68 views

MIPI DSI display initialization not following standard DCS commands, uses 0xFE instead

I recently was looking at a MIPI DSI display for use in a potential product, when I noticed on its datasheet that the DCS commands it was using were not part of the official list I have, nor do they ...
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1answer
84 views

How do pixels in a LCD display are individually controlled by a electrode?

How do tiny subpixels in the Led displays are controlled by those indium tin oxide electrode.How do they provide different voltage for each pixel
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84 views

Ghosting Issues with IPS and TFT Panels ( from Waveshare and Sony ZUltra)

I've bought a used Waveshare IPS LCD and it has a ghosting issue, were as if you turn it on after about 30 seconds it starts to have ghosting and also burning on the edges effects, I am 90% sure that ...
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2answers
407 views

Why backlight an LCD display with AMOLED? Can IPS terminology apply to AMOLED?

I've been reading about IPS LCD and LED/OLED display technology in general, and am a bit confused about the following product: HP Spectre x360 2-in-1 Laptop: 15.6" 4K, i7-8705G, 16GB DDR4, 512 SSD, ...
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1answer
134 views

Correct Initialization Routine for LCD Panel (HX8357D)

I have acquired a color 320x480 TFT LCD display based on a HX8357D driver. It is an Adafruit 3.5" Touchpanel display. I would like to use it for one of my projects based on Rust. Currently, there ...
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1answer
150 views

Keypad saved shifting display using Verilog

I'm designing a number exchange module, and so far I've been able to make it display on Seven Segment Display (S-S-D), like if I press 0 it shows 0... etc. I'm using 2 sets of 4-bits S-S-D (Common ...
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1answer
42 views

E ink display reading values

I want to create a project which involves reading of values of pixels on e ink display. I know there are e ink with touchscreen inputs but I was wondering whether it is possible to use only an e ink ...

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