Questions tagged [display]

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

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22 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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51 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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13 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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10 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
20 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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22 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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1answer
324 views

LVDS display troubleshooting

I am currently working on a prototype connecting a SOC-board (Samsung ARTIK530) to a LVDS LCD display (DT070BTFT-PTS1). The display shows a very (!) distorted picture. I have tried fixing it using ...
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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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1answer
925 views

Help driving an old Vacuum Fluorescent Display

I recently salvaged a VFD from scrap, and am currently trying to get it to display light (not worrying about actual numbers/letters yet, just trying to get it to light up). I've read up about these ...
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24 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
65 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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2answers
213 views

I2C Communication Between STM32F3 and SSD1306

I am trying to write data to my 128x32 OLED display. I researched it online and found that it has the SSD1306 controller connected to the display. It uses the I2C protocol and it only has 4 pins (VCC, ...
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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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1answer
125 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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32 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
63 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
63 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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2answers
82 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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1answer
387 views

XV0 and V0 - what does it stand for?

I'm looking for suitable GLCD, so far I have found the RX12864H, however the datasheet describes a lot of voltages and I'm bit confused. While the VSS and VDD are clear to me, I have no clue what do ...
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3answers
1k views

Identifying a 20 year old 7 segment 9 digit led display

I have a 20 year old 7 segment 9 digit led display, I cannot figure out the part no. Here's is what is written in the back of it: (NSA 520 DCCB VO 0179-A) It has 9 digits, a segment below every ...
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1answer
37 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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1answer
315 views

PIC32MX UART Interrupt Not working

I am writing a program to send data from one microcontroller and receive the data using on another PIC32 microcontroller and display the received data on LCD. I am using UART2 of both PIC32MX to send ...
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1answer
212 views

Working with LCD Optrex F-51684 without datasheet

I have a display from Panasonic car stereo (Toyota Corolla), but can't determine how to work it. It's called Optrex F-51684, and there is no datasheet for that LCD. Is it possible to find how to work ...
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2answers
352 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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0answers
58 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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63 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
335 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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4answers
30k 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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2answers
480 views

Constant flickering of TFT Display

We have an issue with our TFT display. The display constantly flickers while displaying. What are common causes for flickering in this type of display? How can we resolve this issue? It's a 3.5 inch ...
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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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1answer
54 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
79 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
130 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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3answers
3k views

Is this a common LCD display? [closed]

I'd like to know if this LCD display is a common one like the HD44780. Sadly there is no model number on it, only the brand(?) "onv" or maybe it should be "auo" when you read it upside down. It's part ...
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1answer
84 views

Display Driver for a SHARP LS020B1DD01D LCD [closed]

I am working on a personal project that will feature an LCD panel and push buttons to control the graphical user interface. For the LCD I would like to use the SHARP LS020B1DD01D (for the ...
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1answer
121 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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1answer
33 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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1answer
465 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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1answer
796 views

Selecting the correct ILI9341 Drive Mode for STM32F407 using FSMC

I have selected the STM32F405 for my next project. With this controller, I am planning to drive a 240x320-TFT with an ILI9341 display controller by using the STM32's internal FSMC interface. I have ...
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42 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'...
3
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1answer
163 views

Debugging dual LVDS display panel color issue

I'm on TI's AM5708 platform (custom board) trying to drive this Full HD panel via TI's DS90C387 Dual-Pixel Display Interface. The SoC outputs 24bit RGB into ...
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0answers
58 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
71 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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66 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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1answer
144 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
41 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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2answers
756 views

Why do we need sync pulses in digital (LCD driving) context?

I am studying how to drive LCD TFT display with the microcontroller (STM32F746). The manual mentions that I have to set up timings for HSYNC, VSYNC, VBP (Vertical Back Porch), VFP (Vertical Front ...

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