The retinal show of the iPhone four and the iPad received awards . Apple’s iPhone four and iPad were awarded the Show of the 12 months prizes by way of the The Society for Information Display(SID). This organization technologies and individuals in the display industry annually in the sun when a special achievement. The jury praised the display of the latest generation of iPhones: "Because it houses four times as many pixels as the same 3.3-inch screen, older iPhone models, the screen is 640 x 960 pixels the new standard in the industry for screen resolution, energy consumption and image quality. "
The full description of the jury reads:
"This year, Apple has its record of revolutionize personal communications technology extended with the introduction of the iPhone screen Retina 4. Because it houses four times as many pixels as the same 3.3-inch screen, older iPhone models, the screen is 640 x 960 pixels the new standard in the industry for screen resolution, power consumption and image quality. The use of IPS (In-plane switching) technology, the iPhone has a better viewing angle than conventional four mobile displays. This provides a better viewing experience for the end user in any application. "
After that there is still a very technical description of the display, to be sure but we're not translate:
The display features a host of Technical Advancements: Customized LTPS TFT backplane with organic Passivation and optimized pixel design, user-customizable, auto-adjustable brightness Using ambient light sensing, advanced IPS compensation polarizer technology for high contrast (800:1) and color consistency Regard less or viewing direction, 8-bit color depth, an ultra-thin, tiny-footprint driver IC, and patent-pending mechanical integration.
Utilizing Mobile IPS (in-plane switching) technology, the iPhone 4 Retina display achieves a viewing angle superior to conventional mobile LCDs, providing an enhanced viewing experience for the end user in virtually any application. The display features a host of technical advancements: customized LTPS TFT backplane with organic passivation and optimized pixel design; user-customizable, auto-adjustable brightness using ambient light sensing; advanced IPS compensation polarizer technology for high contrast (800:1) and color consistency regardless of viewing direction; 8-bit color depth; an ultra-thin, tiny-footprint driver IC; and patent-pending mechanical integration.
The iPad display provides a superior viewing experience with a minimized gamma shift over viewing angles, enabling designers to create innovative apps that further enhance the viewing experience. The iPad’s fully customized design leverages the existing amorphous silicon thin-film transistor (a-Si TFT) infrastructure in an innovative, ultra-thin product with the unique LCD and an innovative power-management system that achieves maximum power efficiency – 10 hours of battery life for WiFi web surfing and 9 hours for 3G web surfing.
The difference between the screen on the iPhone 4 and iPhone 3Gs is reproduced here demonstrated in a video from YouTube