Each pixel consists of an anode and cathode separated by a thin, organic membrane.
ENGADGET: Mitsubishi's huge, modular OLED display set to go on sale worldwide on September 21
This makes it possible for each pixel to hold its state without much battery power.
By the way of context, each pixel wasn't quite as big as a microSD card, but nearly.
ENGADGET: This is what native 4K home cinema looks like on Sony's VPL-VW1000ES projector
The biggest limiting factor until now was transistor size, since each pixel on an LCD screen needs one.
Each pixel is like a bucket that fills up with photons of light.
Each pixel's charge varies according to the intensity of the light striking it.
Those charges are funneled en masse through a single analog-to-digital converter, which outputs each pixel's value in ones and zeros.
The frame rate is 15 fps and the "ground sample distance" is 15 centimeters -- each pixel represents about six inches.
ENGADGET: Darpa develops a 1.8 gigapixel digicam and no, you can't 'check it out'
PRODES, relies mainly on Landsat, an American satellite which provides colour images of great detail (each pixel represents 30 metres on the ground).
ECONOMIST: What the numbers do and don't say about deforestation
Rather than being routinely emptied out 60 times a second regardless of light levels, each pixel on the Pixim chip is checked 128 times a second.
Red, green and blue filters then allow different colours to show within each pixel, but light has to be shone through them for this to happen.
ECONOMIST: Electronic screens as thin as paper are coming soon
For color images, each pixel contains 24 bits of information, meaning that, uncompressed, even this very grainy picture would take up an entire megabyte of computer memory.
The light from the lines is directed to the appropriate eye using either tiny lenses or diffraction gratings over each pixel (the dots of which the picture is composed).
Apple's implementation would slim things down by either having electrodes share duties, both driving the display and taking finger input, or stuffing two electrodes into each pixel to accomplish the same goal.
ENGADGET: Apple gets patent for in-cell touch display with impeccable timing
The capsules are arranged as pixels and electric charges applied to each pixel pull either the black or the white particles towards the top of the capsule (and the opposite colour to the bottom).
ECONOMIST: Electronic screens as thin as paper are coming soon
However, instead of each pixel representing a colour, as in the image on a screen, these readings show all the different chemical compounds present in each of the thousands of tiny patches that together make up the sample.
Pixim's innovation is to give each pixel its own analog-to-digital converter so that photons are continuously converted to ones and zeros and the camera's microprocessor can tell exactly how fast each pixel is filling up relative to the other pixels.
He came up with the 80m figure by multiplying the number of dots, or pixels, in a high-resolution image (about 1m-2m) by the number of surfaces that an imaginary ray of light corresponding to each pixel would encounter as it bounced around a complex scene (say, 50-100).
Rather than remembering each pixel value as an address and three values for red, green, and blue (RGB), a program can check and discover that a whole region of the screen is the same color for the moment and simply say, for all the pixels between these two addresses, set them to these three values.
FORBES: Density Of Meaning: Creation As The Flip Side Of Memory
The only task left is to display the proper color for each lit pixel.
The Foveon X3 direct image sensor captures all primary RGB colors at each and every pixel location with 3 layers, ensuring the capture of full and complete color.
ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens
For the default home screen, Amazon's relying a lot more heavily on images, taking advantage of that increased pixel count with a row of three book covers, each of which represent your recent picks.
Side note: Each attendee here (close to 6, 000) will get the Chromebook Pixel, the high-end netbook.
This arrangement makes the chip particularly suitable for image-processing, because each analogue element of the array can be made to correspond to a single pixel (one of the individual dots of which an image is composed).
Each mirror acts as a beam-steering device, controlling whether a single picture element (pixel) in the image is light or dark.
The Amazon typography team worked at the pixel level to ensure consistency of stroke thickness and shape profiles across all individual glyphs, aligning each size to the specific grid of the new Paperwhite display.
ENGADGET: Amazon's new Kindles now available in Canada, Paperwhite starting at CAD $139
应用推荐