Questions tagged [lcd]

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

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How do LCD monitor contrast settings work?

Most monitors have settings for brightness and contrast. I understand the brightness setting, it only (mostly) controls the brightness of the LCD backlight. How does the contrast setting work, exactly,...
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Adjust brightness without monitor buttons

My second monitor is quite an old LCD display using a VGA connection, and its image is really dark (even with brightness 100%). The only way I can increase it by a bit is by adjusting contrast, but it ...
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Dell UP3214Q LCD sudden burn-in and off-colours

I've been using a second hand Dell UP3214Q for over a year now with no visible issues in the panel. This afternoon, in the time it took me to make a coffee, this happened: This photo was taken after ...
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Unusual designs inside of laptop LCD

Since last few days, I am noticing an unusual line like design in my laptop screen. If seen from front side, the line doesn't appear, but seen from upside, it is visible. This image is showing the ...
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Can spots of inactive black pixels transmit to the other part of the screen?

I've found a very old laptop in my house (probably 14 years). I remember the screen was damaged because of pressure on the upper right corner. Something came between the lid and the base of the laptop ...
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Thinkpad 370 max brightness reduced after Windows update

An automatic Windows update caused by LCD backlight to no longer output its full brightness, even when set to 100%. Basically, what used to be 70% is now 100%. This is a very frustrating problem to ...
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Change contrast on OS level

I connect my workstation to 3 displays. The workstation has 2 DP ports and 1 VGA port. The VGA port makes everything on the display way too bright. But the problem is not necessarily the brightness ...
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Is it a VGA issue when millions of randomly colored pixels shown on my two LCD monitors when switching them on?

I have just purchased a new Video card Asrock Phantom Rx 570 4GB. I attached one of my LCD monitor to the card via the DVI port. Every time I turn the monitor on there are an animated millions of ...
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LCD capacitor issue fixing itself after some time

I have a Viewsonic XG3240C 144hz monitor. Recently it started having problems when turned on after being off for some time (8-10 hours). It shows distorted horizontal lines at the bottom of the screen,...
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ONLY when room is cold — Monitor LCD screen flashing on/off when first turning on

So here's the situation : I have an old Samsung SyncMaster 932bf. Manufactured in 2007, I've been using it everyday since. So yeah, I'm aware the monitor is very old and probably just needs to be ...
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Can LCD monitor react tolighting of the surrounding enviroment

I have a new LCD monitor EIZO and I have observed the following surprising thing: when I turn on the lights in my room, the monitor becomes much brighter than when I turn them off. Is it true or my ...
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EIZO new monitor LCD display Software doesn't work

I have windows 8.1. I have installed my new monitor EIZO software but after clicking on it it just does nothing. It should open ScreenManager.
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What could be the cause of faint, periodically repeating, lines on the edge of my screen?

I'm seeing a pattern of 5 or 6 faint dark lines repeating on the edge of my screen, and want to know, a) If it can be fixed (easily)? How? b) What could be the probable cause for the issue? I've ...
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Calculating how many dead pixels I have on my Monitor

I think I have a (or several) dead pixels on my Acer 24" Monitor (Model Name: HA240Y Part Number: MM.T97SI.001) Their policy says: Dead Pixel Warranty Policy The table below shows the allowable ...
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Dell U3214Q at 4K/60Hz over DP1.2 has image difference between left & right halves

I’ve noticed subtle differences between the image on the left & right sides of this display. For instance, white on black text appears slightly brighter on the left side. The transition is sharp; ...
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Can you fix a laptop with a thick black line in the middle of it?

So, my stupid stupid self dropped my Acer Aspire 7551 and now there is a long thick black vertical line on my screen, I really don't know what to do. Anything I could do?
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laptop screen suddenly started flickering vertical lines changing colors and frosty letters

laptop screen suddenly changed with flickering vertical lines changing colors and frosty letters this is HP pavilion dm3t-1000 CTO laptop I am attaching pictures what does it look like is an ...
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6 years with Flickering Screen on a laptop

I have bought this laptop in 2009. I do not remember exactly when the problem started but it must have been after 4 - 5 years of purchase. Looking for a solution online, I was recommended to replace ...
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113 views

Cracked screen on HP Chromebook x360 - Model # 14-DA0012DX

I have a HP Chromebook x360 14" touchscreen (product 7UL19UA, model 14-DA0012DX) that has a cracked screen. I posted a question in HP’s forum but didn’t get much help. How do I know if just the ...
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208 views

Horizontal lines on Dell Inspiron 15

so my laptop screen started showing a tiny line at the top left corner of the screen it was nothing at the moment and then after a month suddenly the whole screen was filled with colorful horizontal ...
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79 views

Acer 22" K222HQL poor quality with viewing area / angle?

I'm having some trouble with an Acer monitor we bought a few months ago. I've just started using it with my Mac, but the issues don't seem related to the mac. I'm just wondering whether there is a ...
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4k 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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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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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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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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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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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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55 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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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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185 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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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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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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1k 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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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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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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238 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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337 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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82 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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61 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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69 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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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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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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132 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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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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69 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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4k 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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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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9k 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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2k 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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