Np115 white pixels

You can't fix dead pixels, the transistor is faulty. This is indicated by black spots.

Stuck pixels remain a solid color other than white. This cane sometimes be fixed using software that flashes solid colors on the screen. Hot pixels remain solid white. this can be fixed in the same manner.

http://udpix.free.fr/
http://www.jscreenfix.com/

These are free software to fix stuck pixels.

It sounds like one of the polarisers has failed, on experience they cost £300 each to replace, and there are 3 of them. I recently bought an NEC NP115 for just over £200, very good spec for the cost. It maybe worth investing in a new one.

Hope I was helpful for you.

Hello
Dead and Stuck Pixels
Pixel defects for an LCD monitor are defined as one of two types: dead or stuck. Technically, both types of pixel defects are stuck pixels but it really deals with the electrical currents and the state of each pixel or sub-pixel.
A dead pixel is defined as a pixel or set of sub-pixels that has failed and is permanently in the off position. This condition means that the pixel will not let any light through. This can be observed as a dark or black spot on a brightly colored or white background.
A stuck pixel is defined as a pixel or sub-pixel that has failed and is permanently in the on position. This can be either with a single or multiple sub-pixels for a given pixel and is best observed on a dark or black background. A white pixel means all three sub-pixels have failed while a green, red or blue pixel means one of the sub-pixels has failed.
Hope this helps, if so do rate the solution

White pixels are STUCK pixels, not dead. Read the warranty beacuse at a certain number of stuck/dead pixels, the tv is repaired for free by the seller if is in warranty period.

There's a 'data control' and/or 'address' problem that's developed. Pixels depend on voltage, control, and data coming too their designated address.

A digital circuit feature called a 'DATA_ADDRESS_ BUS" are responsible for 3 criteria: Delivering voltage, control, and data to each pixel in less than a second.

1) If voltage fails the pixels don't light up. They appear black in color (their 'off 'state)....numerous pixels that don't light up look like a black line. But their actually individual pixels with no voltage.

2) If control fails then all pixels are white in color (their 'on' state). Without control the pixels can't adjust properly to high or low 'state', meaning brightness and dimness. This looks like a white line vertically on the screen.

3) If data fails then the pixels can't adjust to the proper color at the proper time.
This appears as a line that changes color out of sync with the entire picture.


Have a technician look at the pixel address registry circuits. As well as control and linear circuits....the problem is somewhere in there!

No this is whats called a dead pixel. Since it's white the transistor at that pixel area is shorted. Depending on the age of the unit the manufactor may replace the unit if not the whole panel will have to be replaced at a cost of more than the unit cost. Most manufactor says more then one pixel has to be bad before they will do anything.

You can't run in HD with the red, yellow, and white connection. Use and HDMI cable and you should be good to go. You can purchase an HDMI cable from any retailer that sells TV's. Link Depot Gold Plated High Speed HDMI Cable 6 10 15 2 pack Walmart com

HELLO!!!

Try updating the display drivers ... Hope it turns goos after the update ...

No, it isn't to do with white balance. Instead it is due to a combination of noise swamping (or at least modifying significantly) the exposure measured by the pixel, and the interpolation algorithm in the sensor processing chips that "guesses" the colour of a pixel based on the readings from nearby pixels. These algorithms are better at rendering certain kinds of image elements than others. Large areas of darkish colour often fool the algorithms into attempting to produce detail that doesn't exist.