81
votes
Accepted
What sense does it make for "sharpness" to be adjustable on a monitor?
Per https://www.cnet.com/uk/how-to/turn-down-your-tv-sharpness-control/ , "sharpness" on an LCD is part of the post-processing.
Even leaving out rescaling/upsampling (e.g. if you try to display an SD ...
- 6,041
67
votes
What sense does it make for "sharpness" to be adjustable on a monitor?
Original Question: Where exactly does the degree of freedom for adjusting sharpness come from?
Sharpness is directly related to the type of signal and content you are viewing. Movies typically look ...
- 11.6k
38
votes
What sense does it make for "sharpness" to be adjustable on a monitor?
The answer is that a pixel is not what you think it is. There is not a 1 to 1 correlation between digital pixels and physical pixels due to "Subpixel Rendering". The way colors are displayed is ...
- 4,662
37
votes
What sense does it make for "sharpness" to be adjustable on a monitor?
You are correct that for a perfect reproduction on the input, the monitor should simply present each pixel as it is delivered.
However, your eyes (and your brain) don't see pixels as separate ...
- 9,932
23
votes
How can I use this LCD TFT screen as a (wired) second display for my Windows Laptop?
That's not what you would really define as a 'monitor'. It would best be described as a 'TV' without a tuner.
It takes composite video, which is a rare output from a computer these days.
As mentioned ...
- 48.7k
21
votes
Laptop dimming display on dark backgrounds
An obscure forum post pointed me in the right direction:
Search Windows for 'Intel'
Select 'Intel HD Graphics Control Panel'
Click the 'Power' square button
Click 'On Battery' tab
...
- 4,116
17
votes
What sense does it make for "sharpness" to be adjustable on a monitor?
You're absolutely right that setting sharpness on your monitor somewhat "distorts" the image from the pixel-accurate data as sent by the computer (or whatever is attached to the other end of the video ...
13
votes
What sense does it make for "sharpness" to be adjustable on a monitor?
The software asks the monitor to display a particular pattern of 32-bit RGB values, right?
i.e. The OS might ask the monitor every frame to display a particular 1920×1080×32 bitmap.
That's not how ...
- 652
9
votes
What are these LCD defects if not dead pixels?
You probably have a leak or fracture in the liquid crystal layer of your monitor causing it to loose fine control of the light blocking ability of the liquid crystals.
Your display has many layers. ...
- 90.8k
9
votes
Accepted
How can I use this LCD TFT screen as a (wired) second display for my Windows Laptop?
Your monitor accepts a composite video input. This is an older analog standard that was pretty ubiquitous on TVs, VCRs, and DVD players in the late 80's and throughout the 90's, and is probably not ...
- 73.6k
7
votes
Removing dead thunderflies stuck inside an LCD monitor
I had a bug directly in the middle of my monitor and I removed him by disassembling the monitor.
So there are four layers in your monitor:
backlight
diffuser
LCD
front facing outermost protective ...
- 2,788
7
votes
Is LCD TV screen technology unsuitable for regular use on a computer monitor at close viewing distance?
We ran a very informal experiment at one of my former workplaces (software engineering) by passing around a couple 37" 4k TV screens that people tried out as monitors. Anecdotally, some people ...
- 685
6
votes
Accepted
Who makes Dell's monitors?
BenQ make a lot of them.
When a new model is made - at least in the USA, a "FCC Declaration of Conformity" must be issued - stating that the screen complies with all required legislation and ...
- 12.6k
6
votes
What sense does it make for "sharpness" to be adjustable on a monitor?
On a (digital) TV, sharpness controls a peaking filter that enhances edges. That is not so useful on a display if used as a computer monitor.
In the previous century, on a high-end analog CRT ...
- 259
6
votes
Is LCD TV screen technology unsuitable for regular use on a computer monitor at close viewing distance?
The LG 24LJ4540 would make a poor computer monitor because of its very low resolution and pixel density. There is nothing you can do to fix this.
This monitor has a 23.6" (diagonal) panel with ...
- 861
5
votes
What do frequencies mean for LCD screens?
Same thing: how many times per second the screen is refreshed.
Graphics cards aren't streaming single pixels that changed. They don't even have this concept because they are rendering entire screen ...
- 56.4k
4
votes
Accepted
Grey Contrast with BenQ XL2730Z
It turns out there's a setting in the monitor Menu > Display > HDMI RGB PC Range. You need to set this to "RGB(0 ~255)". If you have a Mac connected to the monitor, there's a chance that this setting ...
- 207
4
votes
What sense does it make for "sharpness" to be adjustable on a monitor?
It doesn't make sense. Or at least it doesn't on most LCD monitors. You will almost always want your "sharpness" set to 0, depending on the monitor or TV (some will blur the signal at 0, so the real ...
- 157
4
votes
What sense does it make for "sharpness" to be adjustable on a monitor?
Sharpness settings exist on LCD panels because manufacturers think digital effects will sell more monitors and TV's. Rather than faithfully represent the input from the computer, the manufacturer ...
- 229
4
votes
What sense does it make for "sharpness" to be adjustable on a monitor?
Many monitors can accept a video signal that doesn't have the same resolution as the panel, and attempt to scale it as appropriate. If a monitor which is 1280 pixels wide is called upon to display an ...
- 1,789
4
votes
What do frequencies mean for LCD screens?
They might be individually addressable, but they are not simultaneously addressable.
They still need to be set, and refreshed, sequentially. That imposes similar limits as CRT screens. Processing ...
- 90.8k
3
votes
Accepted
Why do I need an Inverter when converting a LCD screen to a standalone monitor
The "inverter" seems to be present in most projects like this one...is it really needed? what is it for?
An "inverter" is a power supply that converts DC to AC.
A LCD panel should only need an ...
- 17.4k
3
votes
Accepted
Why do laptop manufacturers turn off only the backlight not the whole LCD?
Typical laptop LCD (without backlight) uses really low power (maybe 0.1W?).
If you turn off LCD completely you will see latency after turning on. Graphics card and operating system has to ...
- 2,666
3
votes
Why am I seeing red dots on my LCD screen?
Had a similar issue after replacing a screen. The pixels almost flickered as well. I read this some where, but just pushed on the screen and bezel. Basically where the connector is on the back ...
- 31
3
votes
Laptop dimming display on dark backgrounds
For anyone who doesn't have the Power Saving Technology option in Intel Graphics Control Panel (I only had a Panel Self-Refresh Enable/Disable option) follow the instructions in the first answer, from ...
- 171
3
votes
Laptop dimming display on dark backgrounds
Such annoying feature in Philips BDM4065 monitor was caused by its "SmartContrast" setting turned on. Turning it off resolved the problem completely.
(This is not an advice for built-in laptop ...
- 131
3
votes
What is the difference between these display screens?
1) BrighView HD LED-Backlit display is a glossy screen. It has advantages such as clearer images, wide viewing angles, high contrast, vivid colors and reduced eye fatigue.
2) HD TN GL(Slim) is TN ...
- 31
3
votes
Accepted
Bright Spots on Dell E6410 screen
What are the bright spots?
It looks like you've probably identified the problem correctly. In fact, the link to pictures in your comment included pictures from several of the sites I found looking ...
- 27.2k
3
votes
Accepted
Horizontal pixelated lines on my Laptop LCD screen
It's not a driver error as it even shows in the BIOS
That means it is a hardware issue. Things to look at.
Cable that connects motherboard to LCD is pinched, damaged, etc. Replace this cable.
...
- 73.6k
3
votes
Wrong colors on LCD connected to thin mini ITX
There is no guarantee that the display and motherboard are compatible - there are no common standards when it comes to LCD panels, they tend to vary in colour formatting, number of lanes, etc.
...
- 1,496
Only top scored, non community-wiki answers of a minimum length are eligible