TFT is a thin film transistor. However in common use it normally refers to a type of LCD display technology that uses thin film transistors located close to the pixels to allow higher contrast and beter multiplexing than passive LCD displays.
Questions tagged [tft]
140 questions
24
votes
1 answer
Differences between OLED, LED, LCD, and TFT Screens
I have heard about these different types of screens on DIY websites and in consumer electronics. What are the differences in these types of screens and what are their advantages and disadvantages?
Coder404
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1 answer
Why don't wires block out the backlight of LCD/TFT displays?
Every explanation I've seen about how TFT/LCD screens work only talks about one pixel at a time. My question is: how are thousands of pixels and subpixels connected and controlled?
I assume that they don't have a +ve/-ve pair of wires each or else…
spraff
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6
votes
1 answer
Digital RGB interface EMI filtering
Consider the following system:
where:
The motherboard contains a LCD controller (SSD1963 from Solomon Systech) and other components (application processor, solenoid drivers, power supplies, etc.)
The display board contains a white LED backlight…
johsey
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6
votes
2 answers
Is it possible to make an OFET in a home lab?
Is there a way to build an OFET at home?
(low tech, no deep vacuum and plasma, without toxic/hard to dispose chemicals)
What can be the minimum budget for that?
While conductive polymers are pretty cheap and easy to buy, prices for semiconductors…
Puh
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5
votes
1 answer
TFT LCD interface with a Microcontroller: Getting Started
I have a small 3.5 in TFT LCD display from a Chinese manufacturer. It doesn't have an integrated LCD controller. The documentation claims it is a "16 bit RGB/parallel interface" and it uses a Renesas R61581B0 driver chip.
These types of displays…
Forhad Ahmed
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5
votes
1 answer
Difference between LVDS, MIPI, DPI and DSI
I'm on a project that involves TFT displays and Raspberry Pi Compute Module 4. I noticed that there are several acronyms, protocols confusing information.
As I understand it, there are protocols:
DBI: Parallel communication. It can have multiple…
Cristian Pastro
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4
votes
3 answers
TFT LCD pixel clock filtering
I would like to know how to filter the pixel clock in order to reduce emitted radiations.
Block diagram
The LCD controller is part of a motherboard. A board, connected at the other side of the FFC cable (15 cm), filters the signals on the TFT LCD…
johsey
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4
votes
0 answers
TFT screen image being squashed and printed twice
I am getting into graphics programming and have come across an odd issue. I am using Microchip's Harmony + Legato platform on a PIC32MZ DA chip for a TFT screen that takes a 24-bit RGB format input and things are OK, but I am having an odd issue of…
jakob
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4
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1 answer
STM32F407 FSMC interface with TFT LCD
I've written some code to make a FSMC connection between my STM32F407VET6 and a TFT LCD 240x320 pixels. I was checking this several times, however I can't recognize what's wrong.
I'm using 16-bit data bus with FSMC_NE1, FSMC_A16, FSMC_NWE, FSMC_NOE.…
VIPPER
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2 answers
Microcontroller requirements for TFT display
I want to know if I can drive this 320x240 TFT display:
http://www.buydisplay.com/download/manual/ER-TFT032-2_Datasheet.pdf
Which has this controller built-in with 168KB dedicated RAM:
http://www.buydisplay.com/download/ic/ILI9320.pdf
Without having…
MicroGuy
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3
votes
1 answer
Why doesn't my LCD work?
I have an 2.8" LCD that it's controller is ILI9325. I'm trying to use it. for start off, I have written a simple program. the program is this:
#include "stm32f10x.h"
#include "ILI9325.h"
int main(void)
{
uint8_t b,c;
Lcd_Configuration();
…
Roh
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3
votes
2 answers
Using a TFT display that has no controller
I have been using LCD screens (with the controllers) for my projects for a long time. Now I thought of learning how these screens actually work, the part before they go to the controllers.
Well the idea came to my mind when I managed to scavenge…
Nilanjan
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3
votes
3 answers
Arduino LCD Display drawing image issue
I am playing with 3,5" (400x240 chinese unknown 8-bit controller driven) TFT display which is placed into Arduino Mega 2560 R3 board.
My final goal is taking .raw data from SD card and drawing it on display.
What I have done so far:
- My drawing…
Neil Galiaskarov
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3
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1 answer
What is the difference between TFT LCD interfaces?
I am looking at driving a small TFT and have found that the driver chip supports various interface methods, however I can't see why I would choose one over another.
The options are:
i80
SPI
VSYNC
RGB
Can anyone describe the pros and cons of the…
Zebra North
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2
votes
1 answer
Line down center of TFT display
I'm trying to connect a Sharp LQ070Y3DG3B TFT display to an Epson S1D13517 display controller. The test image and a bitmap that I've loaded are showing up fine, except there is a aqua line vertically down the center of the display about 1 pixel wide…
mjh2007
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