Pixel design, optimal

E.L. Atlas, S. Shaj iro, D. Cords, Design of a Pixel Cell Optimized for a Data Push Architecture, SLAC TN 92-2, Dec. 1992. 

For the blue pixel, the standard CIE 1931 color chromaticity coordinates are (0.14-0.16, 0.11-0.15). Since a relatively large band gap is required for blue emitters, the appropriate blue host materials with even larger band gap are needed to optimize the energy transfer requirements. The main challenge in designing the blue emitter or its host is the device stability. 

XGA Acronym for Extended Graphics Array. XGA is only available as a micro channel architecture expansion board it is not available in ISA or EISA form. XGA supports resolution of 1024 horizontal pixels by 768 vertical pixels with 256 colors, as well as a VGA mode of 640 pixels by 480 pixels with 65,536 colors, and like the 8514/A, XGA is interlaced. XGA is optimized for use with graphical user interfaces, and instead of being very good at drawing lines, it is a bit-block transfer device designed to move blocks of bits Hke windows or dialog boxes. 

Quantization can be optimized for certain distributions of brightness levels, such as Gaussian and doubleexponential. Another class of techniques, known as moment-preserving quantizers, does not make specific assumptions about distributions. Instead, the quantizers are designed so that low-order moments of the brightness before and after quantization are required to be equal. These scalar quantizers do not exploit the correlation between adjacent pixels. Vector quantization (VQ), in which a small array of pixels is represented by one of several standard patterns, has become a popular method of image compression on its own merits, as well as in combination with techniques such as subband or wavelet decomposition. A major difficulty with VQ techniques is their computational complexity. 

The CMS experiment—one of the four large LHC experiments— is a general-purpose detector designed to optimally exploit the physics potential of the LHC. Located inside the superconducting solenoid, which provides a 3.8 Tesla held, are the hadronic and electromagnetic calorimeters as well as the tracking system. The latter is based on silicon pixels and silicon strip detectors, with a total sUicon area of 210 m. A multi-layer muon system embedded in the return yoke outside the solenoid completes the CMS detector. 

With the help of simple masks, photoalignment provides a means of patterning polarizers and phase retarders inside an LCD. It offers display designers much more freedom in optimizing the performance of the display. In addition to patterned polarizers and retardation films, photoalignment also allows different areas or subpixels to have different LCD modes. Many types of displays will become possible with the availability of such patterning of the pixels and subpixels. One... 

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