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Questions tagged [display]

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

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1answer
44 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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0answers
27 views

High resolution LCD panel similar to to the touch bar in the MacBook pro? [closed]

Is it possible to buy a small (custom size) LCD or OLED panel similar to MacBook touch bar on the internet? Can Arduino drive such a display (Let's say same resolution as touch bar)?
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0answers
29 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 ...
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0answers
15 views

Ideal voltage multiplier design to run a VFD from a battery

I'm looking to run an IV-21 VFD tube off of a low-voltage portable power supply of 4-8 VDC. I've been looking at various voltage multiplier designs to supply the higher voltage needed for the anodes ...
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0answers
26 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 ...
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3answers
46 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 ...
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0answers
36 views

How to convert MIPI DSI to Parallel RGB888 [duplicate]

I am using the Qualcomm Snapdragon 410E and want to interface a parallel RGB888 display to it (24 bit parallel interface). The Snapdragon only has a MIPI DSI interface, so I need to find some way to ...
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3answers
158 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 ...
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1answer
60 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
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1answer
87 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 ...
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1answer
37 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
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1answer
160 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 ...
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1answer
27 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
76 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 ...
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1answer
42 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 ...
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0answers
38 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 ...
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0answers
181 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 ...
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1answer
84 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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0answers
230 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
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1answer
31 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
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1answer
52 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 ...
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0answers
21 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 ...
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2answers
71 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
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1answer
66 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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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
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1answer
103 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
60 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)?
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0answers
44 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
484 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.
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0answers
52 views

i2c lcd graphic screen not working for lower half with arduino

I am trying to use an i2c oled screen with arduino I bought online from China. I have used a similar adafruit screen with the same set up which worked fine (https://www.adafruit.com/product/931), but ...
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2answers
93 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
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1answer
110 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
127 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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0answers
97 views

Getting started ILI9327 based TFT LCD display

I am working with a TFT LCD display. Datasheet here General specs are as follows: Input signals - SPI + RGB Number of pixels - 240 X 400 Driver IC - ILI9327 It comes with a 37 pin flex pcb ...
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2answers
57 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
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2answers
203 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 ...
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3answers
574 views

How to safely insulate the Power PCB of a display computer monitor?

CONTEXT The other day I was checking the heat coming off an aluminium heatsink on the power PCB of an eizo EV line led display monitor. It was okay, not too hot, just warm and tad bit hot. When I ...
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1answer
90 views

How can I design a Caesar cipher encrypter and decrypter without using Non-programmable circuit components?

My device should be able to take an input from A-Z and another input to from 0-25 and finally a Encrypt or Decrypt option. Currently I have given A a code of 0000, B 0001... so on and the output will ...
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0answers
20 views

Adaptive DIsplay vs Progressive Display

What is Adaptive Display? Why is it preferred over Progressive Displays? How do they both differ in terms of how they work internally?
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2answers
70 views

How to display high frequency signals on a small display?

I'm working on a project to build an oscilloscope using the Arduino Mega2560. I've built the system using an 128x160 display, and I'm having difficulty showing a range of frequencies on the display. ...
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3answers
107 views

What could one do with a 4 BIT computer made out of discrete logic gates? [closed]

I want to manually program the 4 bit computer . (Without another computer). I want it to display a message on a LCD display. Let's say a Hd44780 display or a Nokia display. Have a nice day. Here ...
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3answers
216 views

Seven Segment display output problem

I am trying to come up with a circuit using logic gates to drive a seven segment display. I have a circuit with a BCD output (A, B, C, D) and need to convert this so that when any one of nine ...
0
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1answer
142 views

VGA Output for 640 x 360 (16:9) Display for LCD monitor [closed]

I'm currently designing a TTL-based device to output VGA signals to a 16:9 aspect ratio LCD Monitor with a frame rate of 60 Hz. I hove mostly been referring to this question on how the VGA protocol ...
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0answers
23 views

Driving the 030TUE010 display, how?

Does anybody here know how the display of the Coolpix L20 can be used? Can't seem to find a datasheet anywhere
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0answers
123 views

MIPI DSI Screen Misaligned

I'm currently trying to integrate a 4 Lanes MIPI DSI screen to an iMX6 custom board. As the iMX6 doesn't provide any 4 lanes MIPI output, I am outputting via HDMI and converting the signal through a ...
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2answers
115 views

Video scaling vs Display scaling

I am going to start a project in FPGA and "graphical screen" scaling. I am still in the "reading-the-material-phase". Are there any differences between video-scaling and display(e.g. Windows Desktop)-...
0
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1answer
51 views

Testing a Display [closed]

Currently working on a design project for school where a display is needed. I need help figuring out what parts I need to split the 10 wire ribbon cable that comes of the LCD into 10 jumper cable to ...
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2answers
75 views

Which things should I have in mind when choosing LED backlight frequency in range 10 kHz to 100 kHz?

So I have a display which has an integrated LED driver for backlight. The driver expects PWM input with frequency between 10 kHz and 100 kHz. The only other information I have are the maximum voltage ...
2
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2answers
266 views

How to measure/show MIPI-DSI 4 lane signals on DSO/oscilloscope?

I want to measure/show the MIPI-DSI 4 lane signals on an oscilloscope. There is MIPI type display has been connected with LVDS-to-MIPI converter. I want to measure the signals at the output side of ...
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2answers
206 views

4-20 mA loop powered ADC with display

I was asked to design a display that is loop powered and sits between the receiver and the transducer. I was wondering what's the best way to source power from the loop to power my electronics without ...