The video projector projects dead pixels or weird colors
Your sessions are like in the cinema thanks to your video projector. And you love it! But recently, your multimedia equipment has been experiencing display problems. A dead pixel or abnormal colors disturb the proper viewing of your movie ... Let’s take a look at the possible causes of this type of malfunction and whether it is possible to solve them.
THE POTENTIAL CAUSES FOR THIS ISSUE:
WARNING
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There is a risk of an electric shock.
A pixel is a small rectangular element that contains 3 subpixels of different colors: red, green, and blue. These pixels make up the images displayed on the screen of a video projector and of course all other types of screens, like your TV. When a pixel is stuck, it will only display in one of the 3 colors. In a dead pixel, all subpixels are permanently turned off, causing the pixel to appear black.
The lens is dusty
A lack of device maintenance cause dead pixels to appear. This is because dust particles and small elements can enter the lens and disrupt the projection. Before considering any part replacement, first clean the lens to remove all traces of dust and then test it again. If that doesn’t fix the problem, move on to the next check.
The bulb needs to be replaced
The bulb of your video projector or overhead projector is used to display the image in the best way. Do you observe a poor image quality, a color problem or a lack of light and contrast? It is likely, if no more images appear, that the bulb needs to be replaced.
Purchase a bulb for your projector
The screen has imperfections
An image defect when watching a video might not necessarily come from your multimedia equipment, but from the screen itself. Indeed, any defects seen may be due to snags, stains or folds in the projection fabric. Check the screen carefully and replace it if it has any noticeable imperfections. You can also try cleaning it by referring to the screen’s maintenance instructions.
Overheating of the projector
A video projector that heats abnormally can lead to the appearance of dead pixels or color alteration of the images. Check the projector’s temperature and make sure your projection device is well ventilated. Also, check that the fan is operational and replace it if it is not.