the machining process of cell phone jammer

Quality of cell phone jammer can be determined by the machining process of cell phone jammer .
Display is divided into three categories: normal text, simple images (like cartoons such as images, charts and drawn mainly standby menu screen) and photo images. As for photo quality demanding users, 64K colors of course, is a better choice. Screen Material: screen material, the number of colors, contrast, brightness and other indicators in the display type is the core parameters, which largely determines several other parameters. LCD color screen phone for quality and R & D vary, the types roughly STN (CSTN), TFT (LTPS), TFD, UFB and OLED are several. Generally speaking, the colors can be displayed to show the more complex images, richer level of the screen. Now common to the color phone market usually 256,4096,65536 (65K) color three, some high-end models have reached 262,144 (26 million) color display, the better the higher the series, personally think that with the best camera phone in 65K colors or more, while the contrast and brightness should be adjusted. LCD screen resolution is the number of cells (in the point [dot]) is obtained by dividing the screen area of the screen resolution, screen quality of this indicator is to determine the biggest factor. Therefore, in the purchase of color screen mobile phone not only to focus on the screen can display color depth, screen resolution is also a very important decision indicators. 128 * 128 dot matrix screen (or (128 +-x) * (128 +-x), x between 1 and 32), the width and height ratio of 1:1 (or 4:3,3:4 ), is the most common cell phone screen, the most suitable display resolution standard, the equivalent of a computer screen display of 800 * 600 resolution.
VGA (Video Graphics Array) resolution of 640 × 480 pixels, aspect ratio of 5:4. Former king of the HTC Diamond VGA resolution is adopted. WVGA (Wide VGA) is a wide-screen VGA mode, the resolution is to achieve a 800 × 480 pixels and 854 × 480 pixels, two kinds, HTC Diamond 2 and the subsequent production of WVGA Touch HD is a masterpiece and a milestone in the resolution is the MOTO 854 * 480.iPhone 4 of the retina display with 960 × 640 resolution, 326 pixels / inch, 800:1 contrast, detail of the iPhone 3GS 4 times, so use it to browse the text, watch videos and pictures of the effects have an extreme experience. Simply on the screen, the resolution and screen size is not had nothing. Assume a certain screen size, then the higher resolution screen more clearly; the same token, if a certain resolution, the smaller the screen displays the image the more clear.