Questions tagged [lcd]

Liquid crystal display; the type of display panel used in almost all computer monitors today.

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1answer
23 views

How to adjust the maximum white (NOT overall brightness) on an LCD computer monitor (display/screen)?

My eyes are hurting from computer use. I use dark colors when possible, but some applications only use bright white backgrounds. They are resulting in physical pain in my eyes. I have turned my ...
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1answer
23 views

LCD light white side bleed

My wife's laptop (HP ENVY 15t-j100) has not been used for months and been "sitting" on its left edge side for several months. Now, she turned it on and the left edge of the LCD shows a white light ...
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3answers
55 views

What do frequencies mean for LCD screens?

When screens were cathodic, the frequency of the screen was directly linked with the ability to redraw a screen n times every second. It was a complete redraw of the screen and there was no other way ...
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Windows 10 - Display backlight randomly and automatically turns off, only turns back on when the keyboard 'turn-off display' button is pressed

I'm having this problem for quite a while now. The backlight of the display of my laptop, a Lenovo Yoga 500-14IBD, running Windows (10 Home 1909), randomly shuts off. The behaviour is similar to the '...
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0answers
33 views

Dell XPS 15 9560, 9570 UHD 4K IPS touch screen differences

While cleaning the screen of a preowned 9570 I received today I noticed an interesting artifact in the reflection of my light source and I'm not sure what to make of it, or it's implications to ...
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20 views

dismantling LCD screen base

I recently picked up this widescreen lcd for a good price except that the base is all gunked up where the parts meet. Before I can really call it mine I would like to take the parts apart and ...
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0answers
35 views

Smart Tank 515 does not work

I purchased Hp Smart Tank 515 in November 2019. Everything worked fine until today. First, an error appeared - missing black cartridge, blinking icon o lcd display. I tried to fix it using hp ...
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0answers
19 views

How do I fix horizontal lines on a laptop screen and webcam not working?

I have a Asus ROG GL771JW laptop. The webcam is working for 1 second and turning off. There are horizontal lines appearing once in a while, that I can make disappear by pressing on certain parts of ...
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1answer
48 views

Glitchy, distorted flickering when my laptop screen has a very dark or black image on screen

Video Link of the problem: https://youtu.be/dikXS6dBK1w Hello, I've just recently got this problem that when the image on my screen has an overall dark image present the screen displays a very ...
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2answers
53 views

How long should an LED Backlit LCD monitor last?, and why should I choose it as an instance of a CRT monitor? [closed]

How long should my new LED Backlit LCD monitor last?, and what will happen once it reaches it's lifespan? And how long should I change my monitor? (1 year? , 6 years? ,etc...)? And thank you guys!
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0answers
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A smudge on my IPS LCD monitor on grey backgrounds and more noticeable at low refresh rates. What is causing this?

I'm having this issue on my ASUS PG279 monitor where on grey backgrounds I get this smudge on my display that is darker than the rest. The lower the refresh rate the more noticeable it becomes to the ...
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0answers
24 views

Leaving computer monitor on (not standby) and lit overnight

How bad is it to leave an LED monitor lit and on overnight? It will not be in standby mode. The time frame is 6-12 hours of “on”-time, but this could be variable. To avoid burn in, the brightness ...
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4answers
3k views

How can I use this LCD TFT screen as a (wired) second display for my Windows Laptop?

I'm looking at getting one of those small and cheap car monitor displays and having it as a second display for my laptop: https://www.amazon.ca/Buyee-Inch-Monitor-Backup-Camera/dp/B00M6OE1PS/ Now ...
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0answers
39 views

How to display LCD type in Embedded Linux such as Raspbian

I am interested in determining the hardware type of the LCD on a RetroGame that runs embedded linux. I would like to know if there is any command that can fetch a part number or anything that can help ...
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Are all HP 30-pin LCD screen connectors compatible?

I have a 15" LCD screen with a 30-pin connector. Can I connect my 14" LCD screen with the same 30-pin connector with the 15" screen temporarily?
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2answers
160 views

Flashlight/Bright Light Damaging LED/LCD screen?

It is known that direct sunlight on a LED or LCD screen can cause damage. Would a flashlight of 110 lumen shining directly on a LCD or LED screen cause damage to the screen? Would that same 110 ...
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0answers
23 views

What could have caused this scale-like pattern on the surface of this LCD Monitor?

Today I was out refurbishing computer monitors like usual, when I came across this: Note the scale-like pattern. Over the years, I've seen and refurbished thousands of monitors - hundreds of this ...
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0answers
34 views

Laptop screen is flickering, how can I diagnose if its the LCD/backlight or the inverter or something else

My laptop is the Acer Swift SF714-52T. Recently, I started noticing a ~10 Hz flicker on the screen, like someone is swapping back and forth from 100% brightness to 90% brightness. Sometimes it ...
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3answers
225 views

How can I cheaply fix these blue blotches on my LCD monitor?

When my grandparents used this dusty Samsung SyncMaster 913v LCD monitor yesterday, the monitor was working normally. This morning my grandparents first wiped just the screen with a micro-fibre cloth ...
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1answer
43 views

Nano points to ./.brightness.swp when writing to /sys/class/backlight/acpi_video0/brightness

Trying to change the screen brightness of my computer and having failed by conventional methods, I found out that one way is to simply change the value of /sys/class/backlight/acpi_video0/brightness. ...
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0answers
84 views

LCD ribbon cable to hdmi/minidp

Long story short, burned out a resistor in my motherboard for the LCD display so that won't work. Rather than possibly causing more damage by trying to change it I was wondering if there was a cable ...
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0answers
38 views

Dell UltraSharp UHD SHP1430 — Name the defect?

Purchased a new Precision 7530 from Dell.com, chose 'the' UHD UltraSharp display. There are two hardware options for the UHD -- SHP1430 and I think the other is SHP1540. I got a defective SHP1430 ...
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0answers
86 views

Dell Latitude E5470 screen is very dim(backlight not working)

My Dell Latitude E5470's monitor stopped working a few days ago. I connected an external monitor and it was working fine and then I realized I could kind of see the Dell logo on start up when there is ...
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0answers
28 views

EDID Understanding

I am trying to reprogram the EDID for 320/240px, I am using Deltacast to try to get he Hex data for the 320/240px lcd screen. Below are the timings given in the LCD's documentation enter image ...
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1answer
48 views

Laptop HDMI output fit to a 3.5" 320/240 px screen

So here is the scoop I have a HDMI from a laptop outputting to a (Adafruit TFP401 HDMI/DVI Decoder: https://learn.adafruit.com/adafruit-tfp401-hdmi-slash-dvi-decoder-to-40-pin-ttl-display/overview) ...
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0answers
77 views

Potentially broken MHS 3.5in screen messes up Raspberry Pi display

I recently bought one of these: http://www.lcdwiki.com/MHS-3.5inch_RPi_Display and have it mounted on my raspberry pi. After installing the LCD driver, the screen worked...sort of...it would power on ...
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1answer
35 views

Why is the LCD matrix more visible on some monitors than on others?

I have recently bought new 27" "gaming", 144Hz VA panel with 1440p resolution. This corresponds to my older model, which is 27", 1440p IPS. What immediately caught my attention is that this newer ...
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0answers
39 views

Laptop screen stops turning on at times unless

I have a Metabox Clevo P965RE. It was recently dropped and the screen has a small dent in the corner. The LCD panel itself sustained no damage but there is a small dent. I usually have this laptop ...
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0answers
137 views

Modetest LCD outputs are not identical on new LCD implementation

I have been working on implementing a custom 10.1" LCD screen to my Acqua “System On Module” (running a SAMA5D36 Microchip MPU) unfortunately without any good results. The problem I am facing is that ...
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1answer
49 views

LCD screen back light not working

Short story: The screen back light of my Lenovo IdeaPad 700-15ISK-88IP7000671 failed (the LCD works). I changed the LCD cable and then the whole LCD,without success. Long story: My laptop LCD started ...
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0answers
16 views

How to turnoff refresh rate of a screen for few seconds

I am doing a research project in which I want to freeze the LCD display of my computer for 10 seconds. I am looking for a program or software code in which after pressing enter the screen pixels ...
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0answers
22 views

Do I have an LCD panel issue?

I have a brand new replacement Asus Monitor. I'm either having difficulty calibrating it, the panel itself has an issue or my eyes have an issue. No matter how much I adjust the R G B levels, contrast ...
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0answers
64 views

Is “Dot Pitch” the distance between like-colored LEDs?

My understanding is that LEDs provide backlight in LED displays, while dot pitch is the distance between subpixels on the screen——these two are completely different concepts. But according to New ...
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2answers
1k views

Is it a dead pixel or stuck pixel or pressure mark?

I have some small light spots on my LCD that never go away. On black, I don't see any spots. On any other color—for example if it is a red background—I see faint red color on those spots location. ...
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0answers
25 views

Half LCD monitor is bluish

Asus LCD monitor in question shows image that is split vertically exactly in two halves. The left half is normal, while the right half has strong bluish tint. This is the case also when just booting ...
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0answers
4k views

What is the reason for LCD monitor snow and static?

This monitor (Iiyama ProLite) is about 5+ years old and worked well until a week ago. About the issue: It appeared from time to time. It disappeared after about 1-10 seconds. It always disappeared ...
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2answers
853 views

Is it safe leaving monitors turned on (stand by) or could it harm the devices

I was wondering if I could leave my monitors turned on after I’ve turned off my pc, here are some other questions I had: Does the yellow status LED always suggest the monitor is in standby mode? ...
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1answer
45 views

What are 10bit displays worth with all sources being saved in 8bit format [duplicate]

From what I know all images you can create with RGB are 24 bit (8 bit per channel). There are new 10 bit monitors coming into daylight these days. What is their advantage over 8 bit, if all (or ...
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1answer
914 views

Weird green lines on black parts of LCD monitor

I found this LCD monitor, it was soaked in rain, so I had to disassemble it, dry it and reassemble it. It worked perfectly fine, so I stored it safely. I took it out today, hooked it up to my PC and ...
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0answers
331 views

Laptop screen grey, works with external monitor

Two years ago the screen on my Sony Vaio SVS13A190S suddenly stopped working correctly. It displays only grey vertical lines. However, it works perfectly fine with an external monitor. I don't know ...
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1answer
41 views

Laptop LCD flickers on one side

I have a Thinkpad T440s with an AUO IPS 1920x1080 screen which I fitted myself a few years ago (as the laptop fitted with an inferior LG model). Often about a third of the screen on the far left will ...
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1answer
718 views

HP ZR2740W - no display, cause identified, how to fix it?

One day on this monitor picture went black and did not come back until I disassembled it and simply reseated the LVDS (??? I know Laptops have LVDS ribbon, is this cable the same sans form?) cable - ...
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0answers
205 views

Asus ROG G750XJ not turning on after LCD screen replacement

Hope someone can answer my question to this particular problem. I have a Asus ROG G750XJ which needed it's LCD screen replaced due to it being cracked. Long story short, I removed the damaged screen,...
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0answers
36 views

Confused about the correct replacement lcd screen for my laptop

I am trying to replace the lcd screen on my Dell Latitude 6430u (the reason for the need to replace it is here) I'm having a problem finding the correct replacement. On Dell's website I find that the ...
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0answers
85 views

Partial dicolouring of Laptop IPS display

I have this strange discolouring of my laptop screen. It does not affect the entire screen, is rather "spot-like" and has a yellow, brown and blue colour. It gradually began about one year ago and ...
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1answer
147 views

Screen error of missing lines and blurred fonts in Win7?

I want to have Windows 7 running on a 1440p LCD with AMD 7850 DVI, and 1/3 horizontal lines are completely invisible. I have adjusted ClearType many times, changed the DPI to different settings, and ...
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11answers
42k views

What sense does it make for “sharpness” to be adjustable on a monitor?

Modern monitors often have a "sharpness" setting. But I don't really understand how it makes sense for such a setting to exist. The software asks the monitor to display a particular pattern of 32-...
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2answers
4k views

Dark spot on laptop screen

Several weeks ago a darker spot appeared on my screen (as seen in the attached picture, it's right under the "Super User" tab) and it looks as if there was some liquid behind the screen. When I ...
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2answers
10k views

Reduce blue light on LCD monitor

My work LCD monitor has four settings for Color: warm (5000K) standard (6500K) cool (9300K) custom (each of the RGB values can be chosen separately) What is the setting that could reduce at most ...
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0answers
408 views

A dark shadow appears on my laptop's LCD display after I turn it on

A shadow appears on the bottom of my laptop's display, after I turn it on. I don't know if pressing around aso. applies to my issue and I don't want to damage it further, initially it works. The ...

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