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Questions tagged [display]

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

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0answers
36 views

Is there any mini projectors on the market? [closed]

So currently I'm building a DIY chipset (like those you make with Arduinos). Im currently searching is there's any mini projectors on the market to use. As most projector I found are quite large, so ...
0
votes
2answers
51 views

STM32 TFT not displaying solid color

I am trying to use this display with an STM32F0 using SPI. I begin by setting up the peripherals using the following ...
0
votes
1answer
52 views

FFC Connector Replacement [closed]

I'm looking for an PCB FFC connector to replace the FH26-24S-0.3SHW(05), which I cannot find stocked anywhere. I've looked for replacements with .3mm pitch, .2mm flex thickness, and 24 contacts, but ...
7
votes
1answer
678 views

What kind of display is this?

While investigating analog technologies I discovered these images of a quadraphonic 8-track player. All 8-track players I've seen before use analog voltmeters as displays rather than square graphical ...
0
votes
1answer
19 views

Using port 0 in AT89C52 without pull up resistors

So at my university professor gave us following scheme to program this double 7 segment display on the right. At start I tried to simply adress it using P0=(someData) although it didn't work. Then I ...
0
votes
2answers
36 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 ...
2
votes
2answers
81 views

Turning off the LM3914 dot/bar display driver per the datasheet

I'm designing a circuit with an LM3914 dot/bar display driver and want to shut off the entire bank of LEDs based on conditions in the circuit. I'm having some difficulty turning off the driver from ...
0
votes
1answer
43 views

In which branch of engineering can I learn about display technologies like LCD, LED, OLED? [closed]

I am finishing high school this year and want to pursue a career where I can learn and develop display technologies like LCD, LED, OLED, and flexible displays. Can somebody please tell me what branch ...
0
votes
1answer
43 views

How to control a parallel OLED graphics display [closed]

I'm thinking of using a matrix OLED display like this one. This display uses a parallel interface very similar to those I've seen on text LCD displays, so I assume I'd control it in a similar way. ...
0
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0answers
25 views

Display Design - would combining OLED with a white source be more efficient?

To be clear, I'm not an electrical engineer, nor do I claim complete knowledge of how displays work. However, I have done research into displays (televisions, computer monitors, AMOLED phone screens)...
0
votes
1answer
51 views

16 Segment Display Driver ICs

I would like to know what are the available ICs for 16 segments display to control. I have 1 digit three 16 segment display so I want to control those three displays separately by microcontroller. ...
12
votes
2answers
2k views

Why are OLEDs used in screens insted of LEDs?

I was trying to google this question and couldn't find any information. And from reading some info on how they work i didn't find any significant difference asides from OLEDs being made out of organic ...
0
votes
2answers
98 views

What register or setting can control the brightness of an ST7735 based 1.8" TFT Display?

I'm using a KMR-1.8" display which uses a ST7735 driver and it is working ok with the Adafruit_ST7735 library. The problem is the display is very dim once the library has initialized. If I reset ...
2
votes
1answer
49 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 ...
1
vote
1answer
108 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 ...
0
votes
1answer
41 views

16166 display programming

Along with my z80 development board I found a 16166 16*1 display. I have found datasheets for the electronics, it have 8 data (but can be run in 4 bit also) and 3 control, but I have failed to find ...
2
votes
0answers
64 views

How to determine wiring of unknown LED scrolling display board

My school has a LED scrolling display board from long ago in the main lobby. When I flip the power switch, it turns on and starts displaying zzzzzzzzzzz... There's a connector on the outside (2x10 ...
0
votes
1answer
181 views

Not understanding SSD1306 Oled display datasheet

Just out of curiosity I would like to write my own oled display SSD1306 I2C driver using arduino nano board and atmel studio 7. I analyzed the Adafruit I2C initialization which sends byte 0x00 after ...
0
votes
4answers
78 views

Is it safe to run Logic ICs at their maximum output current?

I am building a circuit that will ultimately output to 8 7-segment displays. I am going to be multiplexing these displays. The displays I chose are https://uk.farnell.com/kingbright/cc56-12surkwa/...
0
votes
1answer
132 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 ...
1
vote
0answers
40 views

How Backlit LCD Moniter Works, How it Looks Without a Backlight

I'm thinking about repurposing an lcd backlit monitor's front panel as an 'overlay' type panel over something else without a backlight. My understanding of the function of a backlit monitor that the ...
0
votes
0answers
34 views

Zebra strips with possible gaps

My Breville oven display shows some missing characters and some dimmed characters, after 2 crosstown moves. I have disassembled other devices in the past, but those were repairs for other people. I ...
0
votes
3answers
70 views

How to drive a 3” TFT

I want to display 2 or 3 images in a loop (every 5 seconds or so) on a 3 inch TFT. The TFT can be found here, Resolution 240x400 Screen 3 Inch Tft Lcd with MCU Interface It uses an MCU interface, I ...
-1
votes
3answers
222 views

Why aren't laptops with transparent displays a thing? [closed]

I just realized that the display on my 2012 Macbook Air is transparent. I had the screen brightness of the built in display on the lowest (off) while using an external monitor, and the sun came ...
0
votes
1answer
81 views

ILI9341 Library for arduino

I'm writing an arduino library for ILI9341 tft display. I tried to write on the display but nothing appears. Why? How can I solve the problem ? My source code: ...
1
vote
1answer
103 views

Simplest display for homemade 8080 based computer-what to use? [closed]

I'm designing a 8080 processor based computer and I want it to be able to at least output something visually. I have thought about using SMD LED matrix made by myself, but even with the 160 x 120 px ...
0
votes
1answer
56 views

LCD 20x4 Only Show Fist and Third Rows Pixels On

I have a LCD 20x4 display this display works fine but now it shows first and third rows all pixels On. I am using 4MHz crystal oscillator. That is happen when Vss, Vdd, Vee, RS, RW, E, A and K pins ...
2
votes
1answer
177 views

How is a display with colored cylinders instead of a flip-discs / flip-dots called?

The Rossio railway station in Lisbon (Portugal) uses little colored cylinders for parts of their displays (marked in red). I'd be really interested in getting more information about them, but I ...
0
votes
1answer
38 views

KEM-2542 LED Display Driver

electronics is my hobby. I do many mini projects. Don't know deeply, like create a whole new circuit with a IC datasheet. My problem is, I have a LED Display KEM-2542 (188.8)(3.5) from a old device......
3
votes
1answer
85 views

What should I do to unused input parts/features (analog and digital input pins, and power pins) of a video scaler chip?

I am working on a video scaler chip which has multiple inputs (i.e HDMI, DP, VGA) but I only want to use the VGA input. (Choosing another chip with only one input is not an option). The friendly ...
0
votes
1answer
236 views

Can I operate a 4-lane MIPI DSI Display from just one lane connected?

I was thinking to integrate a MIPI display into a project with a STM32L4R9 processor, which in my package of choice exposess only 1 of it's two MIPI lanes. The data sheets of all displays I viewed ...
0
votes
0answers
45 views

cost efficient BOM for total 10x12 16 segment (1920 led) display

I've already built a few test prototype for a large(ish) 16-segment display board. I want to use a Arduino of ESP8266 to run it, with external power, and ICs for the Characters. So far, I've been ...
1
vote
0answers
335 views

Can anyone help me get this running? (ILI9806E TFT on a teensy 3.5)

I am at one of those points where I just can't seem to see the forest for the trees. My previous experience with TFTs has been pretty much 'plug and play' using adafruit's breakout board kit and ...
0
votes
1answer
163 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 ...
0
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0answers
615 views

AMOLED display vs. LCD display: Power consumption when displaying white only?

LCD's power consumption only depends on the screen brightness setting, not on the displayed content, unlike AMOLED, where brighter colours (towards white) cause more power consumption, while black ...
0
votes
1answer
51 views

Display Driver for a SHARP LS020B1DD01D LCD

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 ...
0
votes
1answer
64 views

1.54 e-ink without driver PCB [closed]

I want to know if it is possible to use this raw e-ink display with Arduino. Is it possible to directly connect cables from this ribbon cable to Arduino without any driver PCB and control it with 3 ...
0
votes
0answers
25 views

CPT LCD display part number explanation

Does anyone know what the letters of Chunghwa Picture Tubes LCD mean in the part numbers for example 7" or 6.95" displays of a series all start with CLAA069LAXXX where XXX is a random assortment of ...
0
votes
2answers
159 views

ssd1306 registers

I got confusion while reading datasheet of the OLED display(128x64).I do not understand why to use two column start registers. https://cdn-shop.adafruit.com/datasheets/SSD1306.pdf
0
votes
1answer
160 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 ...
10
votes
4answers
2k views

Understanding memory requirements for an image file

I want to understand the memory requirements for image resource files to be displayed on a 240x400 resolution display. The display has the following specs: It supports upto 18 bits color depth and ...
5
votes
1answer
119 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 ...
0
votes
1answer
62 views

Question about how the circuit of TV display works

I have a question about how the circuit of TV display works. Does current flow through the gate lines (horizontal lines)?
0
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0answers
45 views

Does parasitic capacitance increase the load value of electrodes?

I'm reading Samsung Display's patent about a display notch. In this patent, the inventors say that providing a parasitic capacitance to scan lines increases their load values. Can anyone tell me why?
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2answers
752 views

Pinouts of 4-digit Seven Segment Display! [duplicate]

I have a display as in photo I sent you. But it has no label so I can't get data sheet. It has seven pins only. How to know its pin configurations? Please help me.
1
vote
2answers
103 views

Do HDMI/DVI and DisplayPort transfer only differences or full frames?

Let's assume I have a static computer desktop on my external display that is attached by HDMI (or equivalently, it could be attached by DVI, as DVI and HDMI are compatible). The 60Hz picture doesn't ...
2
votes
1answer
195 views

How to create measurement points on a PCB for MIPI lane diagnostics?

I am looking for ways to test specifically MIPI DSI lane signal strength (because I am kind of pushing the envelope on the trace length and width), and am happy to add test points to the PCB design. I ...
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4answers
130 views

Why could early displays not show white colours? [closed]

They were usually seen using green or orange text, but apparently because white was not possible for some reason?
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votes
2answers
58 views

unidentifiable phone component [closed]

I've been having a phone display problem which makes the display unreadable as seen in the images, but still usable (the top of the screen works, so it probably is a hardware problem). I did some ...
2
votes
2answers
303 views

Ghosting on 7 segment display

I have an EEPROM (AT28C64B) multiplexed and connected to 3 seven segment displays, I did so using a tutorial online from ben eater https://www.youtube.com/watch?v=dLh1n2dErzE&t=300s Sorry for ...